METHOD FOR PREPARING COPPER THIN FILM BY USING SINGLE CRYSTAL COPPER TARGET
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United States of America Patent
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Dec 28, 2017
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Sep 6, 2017
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Mar 23, 2015
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A method of manufacturing a copper thin film using a single-crystal copper target, and more particularly, a method of manufacturing a copper thin film using a single-crystal copper target, wherein a copper thin film is deposited on a sapphire disk substrate through high-frequency sputtering using a single-crystal copper target grown through a Czochralski process, and may thus exhibit high quality in terms of crystallinity. The method includes depositing a copper thin film on a sapphire disk substrate through a high-frequency sputtering process using a disk-shaped single-crystal copper target obtained by cutting cylindrical single-crystal copper grown through a Czochralski process.
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